first of all, thanks for the nice software VMD which I really enjoy
working with!

I have a question. When I load an MD trajectory of a protein and
calculate the Ramachandran plot, I can scroll through the trajectory and
the current value in x/y is automatically shown in the plot. On the
other hand, if I click on a point, the corresponding frame is chosen.

Is it also possible to load external data (in 1D or 2D) and show it in
the same way (highlighted when scrolling, possibly even going to the
timeframe when selecting)?